Recent high resolution CO observations of normal and starburst galaxies at Owens Valley Millimeter Array are summarized. While normal disk galaxies generally show exponential distribution which follows the optical blue light, starburst galaxies are often characterized by a compact (1 kpc) nuclear complex whose surface gas mass density is strongly correlated with the observed large infrared lumi...

We present the first result of VLBI observations of the blueshifted water maser emission from the type 2 Seyfert galaxy NGC5793, which we combine with new and previous VLBI observations of continuum emission at 1.7, 5.0, 8.4, 15, and 22 GHz. Maser emission was detected earlier in single-dish observations and found to have both redand blueshifted features relative to the systemic velocity. We co...

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We demonstrate that standard polycarbonate compact disk surfaces can provide unique adhesion to Al films that is both strong enough to permit Al film nanopatterning and weak enough to allow easy nanopatterned Al film detachment using Scotch tape. Transferred Al nanohole arrays on Scotch tape exhibit excellent optical and plasmonic performance.

Let φ be an analytic map of unit disk D into itself, consider the composition operator Cφ defined by Cφ(f) = f◦φ whenever f is analytic on D. In this paper, we discuss necessary and sufficient conditions under which a composition operator on a large class of weighted Hardy spaces is a compact.

[03.1] For a bounded sequence of complex numbers c n , prove that ∞ n=0 c n z n z n + 1 converges to a holomorphic function on |z| < 1. Each summand is holomorphic on |z| < 1, because of the quotient rule, and that the numerator and denominator are polynomials, hence holomorphic. To prove that the sum n f n of a sequence of holomorphic functions on |z| < 1 is itself holomorphic, it suffices to ...

We compute the essential norm of a composition operator relatively to the class of Dunford-Pettis opertors or weakly compact operators, on some uniform algebras of analytic functions. Even in the frame of H∞ (resp. the disk algebra), this is new, as well for the polydisk algebras and the polyball algebras. This is a consequence of a general study of weighted composition operators.

A compact and rugged hardware interface for laptop-based ultrasound recording in the field has been developed. The versatile devices overcome the limitations and drawbacks of previously available solutions. The accompanying recording software enables flexible hard disk recording for both manual and automated operation.

Let A be the disk algebra, Ω be a compact Hausdorff space and μ be a Borel measure on Ω. It is shown that the dual of C(Ω, A) has the Dunford-Pettis property. This proved in particular that the spaces L(μ,L/H 0 ) and C(Ω, A) have the Dunford-Pettis property.

We prove that the symplectic group Sp(2n,Z) and the mapping class group ModS of a compact surface S satisfy the R∞ property. We also show that Bn(S), the full braid group on n-strings of a surface S, satisfies the R∞ property in the cases where S is either the compact disk D, or the sphere S. This means that for any automorphism φ of G, where G is one of the above groups, the number of twisted ...